#include <bits/stdc++.h>

using namespace std;

int main() {
    int X;
    cin >> X;
    if (3 <= X && X <= 5) {
        cout << "spring" << endl;
    } else if (6 <= X && X <= 8) {
        cout << "summer" << endl;
    } else if (9 <= X && X <= 11) {
        cout << "fall" << endl;
    } else {
        cout << "winter" << endl;
    }
    return 0;
}